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Before my mother and I took our DNA tests, we assumed our ancestors were European, mostly from the British Isles, and maybe one Canadian Indian great...grandmother.

What a great surprise to find my first three Fingerprint Plus Mega Population ranks to be Iberian American, American Indian and Iberian. (The last six are Northern European, European American, Central Asian, East European, Central European and Mediterranean European.)

My list showed 38 of 50 World Population Matches to be Hispanic! My mother’s test showed 20 Hispanic, but now I know that Dad’s DNA contributed considerably, too. He did not take a test.

My paternal grandmother and a great-grandmother were both most likely the major contributors to the large amount of the Mexican and Central and South American DNA. They were my dad’s mother and a grandmother from different lines.

Best guess is that my dad’s mother had the highest ranking numbers. If so, she represents the #1 Mega Populations ranking - “Iberian American.” I never knew her since she died before I was born but I heard she was a wonderful mother to her eight children.

I believe Dad’s paternal grandmother contributed the Mexican - Nuevo Leon (rank 30) and Mexican - Northeastern - Metizo (rank 31) since my second cousin (who took the Native American Fingerprint Plus test) has about the same rank numbers of these as I do. She was great-grandmother to both my cousin and me.

Most of my mother’s 20 Hispanic DNA rankings were from her grandparents who emigrated from the Shetland Islands, Scotland to the U.S. in the mid-1880s. They had no Native American DNA. They contributed to the California part (rank 19) of my U.S. Hispanic DNA. I’m sure their DNA matched in all areas of the Americas as well. Others of Mom’s Hispanic DNA came from England and Ireland.

I’ve recorded many ancestor surnames as far back as the 1600s but none that were Mexican or Hispanic despite some high rankings. I have no idea how to find these ancestors’ surnames or histories even with the help of Ancestry.com.

Does anyone else have unknown Mexican... ancestors? Is there a good source for learning how to search for those who migrated into the southern U.S. in the 1800s?

These Hispanic ancestors had ancient Jewish ancestry. After reading, WHEN SCOTLAND WAS JEWISH; and JEWS AND MUSLIMS IN BRITISH COLONIAL AMERICA, I understood my DNA test findings much better. These books give the history of the many who migrated to the British Isles from Iberia and then, later on, emigrated to North America. Many of my mother’s ancestors’ surnames in Scotland were included in the first book and many of my Dad’s were in the second book. In earlier centuries there were also heavy migrations from Iberia directly to Central and South America.

Most of our ancient great-grandparents of different lines migrated first from Iberia to the British Isles and later on to the U.S. southeastern states, but my DNA test also indicates that some of our ancient ancestors were indeed from areas in Mexico, Central and South America. Best guess, as noted, is that these were from two of my dad’s lines living in southwestern states - his mother and his paternal grandmother - but also from my Scottish great-grandparents (Scotland > Colorado > California.)

Native Americans intermarried with ancestors throughout the Americas. My DNA test reveals Native American DNA not only from North America, but from Mexico, Central and South America.

Hi Shari. I have had a similar experience. I had my mother tested and based on the results. It seems that my father contributed Mexican Central American DNA. Family history on my father's side claims that they were from Germany but it seems that they had Spanish Jewish ancestry. I matched with some of my distant cousins on my dad's side on ancestry.com and they also have Iberian and Jewish results. I haven't been able to find out much more info though and no one seems to know anything. Some of their surnames were Pfeifer Wiedor and Retzbach. I was able to locate some information about Hispanic Jews named Pfeifer that lived in Argentina but no information as to if they are our relatives. T

Hi Raven,I suppose some of your ancestors might have migrated from Iberia to Germany, then on to Mexico - Central America. You might want to read my post in the Jewish forum - “Berber Jewish Ancestry.” This is my take on our Jewish ancestors’ migration from Morocco > Iberia > Scotland. Your ancestors might have taken this route, too. Your dad might have Berber Jewish DNA. Do you know about when they might have emigrated from Germany to Mexico?

Thanks for letting me know about your post. I will definitely check it out. According to all the info I have they came straight from Germany to the US in the 1800's. What also surprises me is that I received the lake Baikal gene from my dad as my mother did not receive it nor did she receive Belem Amazonians which I did. The only thing that I could think of is that the family tree is incorrect.

Raven, since they came from Germany to the U.S. in the 1800s (Ashkenazi?), someone in this ancestor line could have married into a line contributing Mexican, Central American DNA (Sephardic?) AFTER your German ancestors came to live in the U.S. Early ancestors from the line contributing Mexican, Central American DNA could have migrated from Mexico into the U.S. at some time before marrying into your German Jewish line in the U.S. Just a guess... You’re in the same place as I am with ancestor lines in the U.S. and no Hispanic-Mexican surnames to research. Not being able to find our Mexican... ancestors is frustrating!

I've done some more research and just about all of my German relatives came from Baden Germany. I've looked into this further and found several articles about a large number of Spanish Jews that lived in Baden and then moved around a lot. I'm thinking that my Mexican matches are probably just a combination of the Spanish Jewish and the Native American. I do have an ancestor from the US that her parents were unknown though so I still don't have all of the answers.

Hi Raven,Since many and maybe most of my dad’s ancestors lived in the southern states, I can say that most likely our Mexican DNA was from at least one who was truly Mexican. Best guess, it was Dad’s mother and certain of her ancestors.

I really don’t know if Mexican - Central American DNA can show up on a person’s test unless it’s actually Mexican - Central American DNA, but maybe it is a match to the Spanish Jewish DNA. This is a question you might want to ask an expert at DNA Consultants.